Generation of ground-truths is of great importance for unbiased performance evaluation of document layout analysis methods. This is especially necessary because many methods are claimed to be skew-tolerant. However, experimental evaluation of this fact is often based only on human subjective judgement and restricted to a few experiments. The main obstacle for obtaining human-independent and mor...

Positioning technology is a core component of the ubiquitous computing environment. Radio Frequency IDentificaiton (RFID) is recognized as a powerful means of replacing not only barcodes for product identification but also conventional positioning systems in unfavorable situations such as indoor and obstacle-laden sites. The objective of this study was to determine the design parameters of an R...

abstract introduction: the quantity and quality of research papers and projects is considered as the most important indicator of scientific development in any country therefore, the plan to compare barriers to research activities form the point of view of normal and talented students at arak university of medical sciences was performed in 2010. methods and materials: this study was a cross sect...

The role of solid obstacle surface roughness in turbulent convection porous media is not well understood, even though it frequently used for heat transfer enhancement many applications. focus this paper to systematically study the influence on microscale flow physics and report its effect macroscale drag Nusselt number. Reynolds-averaged field numerically simulated using realizable k-ε model a ...

Compared with the space fixed feature of traditional wireless sensor network (WSN), mobile WSN has better robustness and adaptability in unknown environment, so that it is always applied in the research of target tracking. In order to reach the target, the nodes group should find a self-adaptive method to avoid the obstacles together in their moving directions. Previous methods, which were base...

Obstacles are represented in the attentional landscape. However, it is currently unclear what the exclusive contribution of attention is to the avoidance response. This is because in earlier obstacle avoidance designs, it was impossible to disentangle an effect of attention from the changing features of the obstacle (e.g., its identity, size, or orientation). Conversely, any feature manipulatio...

During locomotion over uneven terrain, gait must be adapted to avoid a trip. In the event of a foot-obstacle contact, the body reactively responds to the perturbation. However, it is unknown if any proactive adjustments are made in subsequent strides to reduce the likelihood of another contact, and how long any proactive adaptations persist. This study examined gait behavior while stepping over...

Spontaneous scalarization is a mechanism that allows scalar field to go undetected in weak gravity environments and yet develop nontrivial configuration strongly gravitating systems. At the perturbative level it manifests as tachyonic instability around spacetimes solve Einstein's equations. The endpoint of this can significantly modify compact object's structure produce observational signature...